Apparatus for applying pressure to shoe bottoms



Sept. 26, 1933. E, w K 1,927,969

APPARATUS FOR APPLYING PRESSURE TO SHOE BOTTOMS Original Filed Jan. 18, 1926 Patented Sept. 26, 1933 UNITED STATES APPARATUS FOR APPLYING PRESSURE TO SHOE BOTTOMS Erastus E. Winkley, Lynn, Mass., assignor to United Shoe Machinery Corporation, Paterson, N. J a corporation of New Jersey Original application January 18, 1926, Serial No.

82,029. Divided and this application March 27, 1930. Serial No. 439,551

Claims. (Cl. 12--38) This invention relates to apparatus for applying pressure to shoe bottoms and is illustrated as embodied in a machine of the type illustrated in Letters Patent of the United States 5 No. 1,790,191, granted January 27, 1931, on my application Serial No. 82,029, filed January 18, 1926, of which this application is a division.

Objects of this invention are to produce shoe bottoms the end portions of which are flat.

A feature of the invention consists in flat, substantially rigid means located between a substantial part at least of an end portion of the bottom of a shoe and a sole pressing pad to prevent the applied pressure from deforming the pad to con form to the shape of that portion of the shoe bottom. Preferably and as illustrated, the flat rigid means is a plate located between the end portion of the yielding pad and a leather cover extending over the pressing surface of the pad. In the illustrated machine the shank portion of the pad is not covered by the rigid means and that portion of the pad remains yielding to enable the pad to conform the shank portion of the sole to the longitudinal and transverse curvatures of the shank portion of the shoe.

These and other features of the invention will appear more fully from the following detailed description when read in connection with the accompanying drawing and will be pointed out in the appended claims.

In the drawing,

Fig. 1 is a side elevation, partly in section, of a machine embodying the invention; and

Fig. 2 is a perspective view of the plate shown in Fig. 1.

In the use of the illustrated machine for pressing shoe bottoms to form on an end portion thereof a fiat bottom, the outsole, after being cemented I on its flesh side, is placed on the shoe bottom and the shoe is put into a sole pressing machine, as shown in Fig. 1. In this machine, which is for example similar to that disclosed in United States Letters Patent No. 942,133, granted December "I, 1909, to Herman A. Davenport, the last is held by a pin 10 on the support 12 and by a toe rest 14 while pressure is applied to the sole by a yielding pad 16, usually of rubber. The pad 16 rests on supports 18, 20, 22 and 24 which'are so connected by equalizing mechanism 26 that the pressure is substantially equally distributed among the supports. The shank portion of the pad 16 is given a transverse curvature in excess of that required in the shoe shank so that the pressure is applied first and most heavily at the margin of the shank. Sufiicient pressure is applied, however, to the forepart and heel part to securethe proper adhesion of the sole to the shoe.

In order to form or maintain an end portion of the shoe bottom, illustrated as the iorepart of the shoe bottom, flat, and to apply pressure 50 substantially perpendicularly to the forepart, the pad 16 of the illustrated machine is provided with a plate 28 preferably flat and suificiently stiff to be substantially rigid under the applied pressure, the plate being, as illustrated, located between the yielding pad 16 and a leather cover 30. The plate 28 extends throughout the forepart of the shoe. Thus, while the shank portions of the shoe are being subjected to the action of the pad to produce the transversely curved close shank effect previously referred to, the end portion of the shoe, illustrated herein as the forepart, is receiving pressure from the plate 28 which, if the shoe has already had its forepart leveled, will tend to preserve its previous fiat condition, and ifthe shoe has not been leveled, will tend to produce a fiat condition of the forepart and render the forepart leveling operation easy.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for pressing soles upon the bottoms of shoes, the combination of a shoe sup' port, a yielding pad, and a single rigid means having a transversely straight surface disposed toward the shoe bottom and located between the pad and the entire forepart of the sole to cause the forepart to be transversely straight.

2. In a sole pressing machine, the combina tion of a rubber pad adapted to apply pressure to the entire shoe bottom, a leather cover over the pressing surface of the pad, and a transversely flat substantially rigid plate coextensive with the forepart of the shoe located between the leather cover and the rubber pad, said plate causing pressure to be applied in directions perpendicular to the transverse lines of the forepart.

3. In a machine for pressing soles upon the bottoms of shoes, the combination of a shoe support, a yielding pad through which pressure is applied to the shoe bottom, and a single rigid plate between the pad and the major part of an end portion of the shoe bottom to prevent the pad from deforming to conform to the shape of that portion of the shoe bottom.

4. In a sole pressing machine, the combination 'of a rubber pad adapted to apply pressure to the entire shoe bottom, a leather cover over the pressing surface of the pad, and a flat substantially rigid plate coextensive with an end portion only 

